CN104785114A - Multi-membrane-leaf rolled reverse osmosis filter element and manufacturing method thereof - Google Patents
Multi-membrane-leaf rolled reverse osmosis filter element and manufacturing method thereof Download PDFInfo
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- CN104785114A CN104785114A CN201410025593.7A CN201410025593A CN104785114A CN 104785114 A CN104785114 A CN 104785114A CN 201410025593 A CN201410025593 A CN 201410025593A CN 104785114 A CN104785114 A CN 104785114A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 238000001223 reverse osmosis Methods 0.000 title abstract 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 243
- 238000001764 infiltration Methods 0.000 claims description 257
- 239000003292 glue Substances 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The invention discloses a multi-membrane rolled reverse osmosis filter element and a manufacturing method thereof, wherein the multi-membrane rolled reverse osmosis filter element comprises: a central pipe, a pure water diversion net, a reverse osmosis membrane and a concentrated water diversion net. The side wall of the central tube is provided with a through hole suitable for the pure water to enter and exit; the number of the pure water diversion nets is multiple, each pure water diversion net is connected with the central pipe, and the pure water diversion nets are wound on the central pipe from inside to outside; the number of the reverse osmosis membranes is multiple, at least one reverse osmosis membrane is arranged between every two adjacent pure water diversion networks, and each permeation membrane is multilayer; the concentrated water diversion net is a plurality of corresponding to the plurality of reverse osmosis membranes, and each concentrated water diversion net is arranged between two layers of the corresponding multilayer reverse osmosis membranes. According to the multi-membrane-leaf rolled reverse osmosis filter element provided by the embodiment of the invention, the displacement or looseness of each element in the multi-membrane-leaf rolled reverse osmosis filter element can be avoided, and the service life is prolonged.
Description
Technical field
The present invention relates to water treatment facilities manufacturing technology field, particularly the preparation method of a kind of multimembrane leaf roll counter-infiltration filter core and this multimembrane leaf roll counter-infiltration filter core.
Background technology
Existing counter-infiltration filter core usually adopts monofilm leaf to roll around central tube and forms, and outlet passage is long.Obtained pure water flow distance in counter-infiltration diaphragm is longer, and the resistance causing pure water to flow in counter-infiltration diaphragm is comparatively large, make the water efficiency processed of counter-infiltration filter core compared with low, flux is little.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.For this reason, the object of a first aspect of the present invention is to propose a kind of multimembrane leaf roll counter-infiltration filter core, and this multimembrane leaf roll counter-infiltration filter cartridge construction is firm, not easily loosens, and flux is large, long service life.
The object of a second aspect of the present invention is the preparation method proposing a kind of multimembrane leaf roll counter-infiltration diaphragm.
The multimembrane leaf roll counter-infiltration filter core of embodiment, comprising: central tube, pure water flow-guiding screen, counter-infiltration diaphragm and condensed water flow-guiding screen according to a first aspect of the present invention.The sidewall of described central tube is provided with the through hole being suitable for pure water turnover; Described pure water flow-guiding screen is multiple, and each described pure water flow-guiding screen is all connected with described central tube, and multiple described pure water flow-guiding screen is wound on described central tube from inside to outside; Described counter-infiltration diaphragm is multiple, is equipped with at least one counter-infiltration diaphragm between often adjacent two described pure water flow-guiding screens, and each described infiltration diaphragm of sending out is multilayer; Described condensed water flow-guiding screen is corresponding with multiple described counter-infiltration diaphragm multiple, and each described condensed water flow-guiding screen is between to be all located in counter-infiltration diaphragm described in corresponding multilayer two-layer.
According to the multimembrane leaf roll counter-infiltration filter core of the embodiment of the present invention, there is multiple pure water flow-guiding screen, counter-infiltration diaphragm and condensed water flow-guiding screen, and multiple pure water flow-guiding screen is all connected on central tube.Thus, by adopting multimembrane leaf roll system, decreasing pure water in flow distance in counter-infiltration diaphragm, reducing the resistance that pure water flows in counter-infiltration diaphragm, thus improve the flux of counter-infiltration filter core, water efficiency processed and service life; Because multiple pure water flow-guiding screen is all connected on central tube, when the hydraulic pressure effect that this multimembrane leaf roll counter-infiltration filter core is changed, pure water flow-guiding screen can not be shifted, loosen etc. phenomenon, and the counter-infiltration diaphragm be arranged between multiple pure water flow-guiding screen and condensed water flow-guiding screen are also not easily shifted, thus the displacement of each element in multimembrane leaf roll counter-infiltration filter core can be avoided or loosen, the internal structure of multimembrane leaf roll counter-infiltration filter core is avoided to damage, ensure the water filtering performance of this multimembrane leaf roll counter-infiltration filter core, and add service life.
In addition, multimembrane leaf roll counter-infiltration filter core according to the above embodiment of the present invention, can also have following additional technical characteristic:
According to one embodiment of present invention, described counter-infiltration diaphragm is be folded to form two-layer, and the contiguous described central tube in the fold position of described counter-infiltration diaphragm.Thus, make counter-infiltration diaphragm can form multilayer for clamping condensed water flow-guiding screen easily, make counter-infiltration diaphragm easy to make, improve the production efficiency of multimembrane leaf roll counter-infiltration filter core, and improve the water filtering performance of this multimembrane leaf roll counter-infiltration filter core.
According to one embodiment of present invention, each described counter-infiltration diaphragm is bonding with at least one in corresponding two described pure water flow-guiding screens.Thus, this multimembrane leaf roll counter-infiltration filter core is made to roll conveniently, Stability Analysis of Structures.
According to one embodiment of present invention, described counter-infiltration diaphragm is bonding with corresponding described pure water flow-guiding screen by glue, and described glue is located at the week edge of an outer surface of described counter-infiltration diaphragm.Thus, not only make multimembrane leaf roll counter-infiltration filter core roll conveniently and Stability Analysis of Structures, but also glue can be avoided to affect the water filtering performance of multimembrane leaf roll counter-infiltration filter core.
According to one embodiment of present invention, described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen are respectively two or three.
According to one embodiment of present invention, described through hole is arrange on the sidewall of described central tube multiple, is equipped with at least one through hole between two often adjacent pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved.
According to one embodiment of present invention, described through hole is the many rows corresponding with multiple described counter-infiltration diaphragm, and is equipped with an exhausting hole between two often adjacent pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved further.
According to one embodiment of present invention, often arrange described through hole all to arrange along the axis direction interval of described central shaft.Thus, make via arrangement reasonable, be convenient to the shaping of central tube, improve the production efficiency of multimembrane leaf roll counter-infiltration filter core.
The preparation method of the multimembrane leaf roll counter-infiltration filter core of embodiment, comprising: be separately fixed on described central tube by multiple pure water flow-guiding screen according to a second aspect of the present invention; By the doubling respectively of multiple counter-infiltration diaphragm, described counter-infiltration diaphragm is set between every two adjacent described pure water flow-guiding screens, and makes the contiguous described central tube in the fold position of described counter-infiltration diaphragm; The doubling of each described counter-infiltration diaphragm two-layer between place condensed water flow-guiding screen; After described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen have been placed, described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen are wound on described central tube.
According to the preparation method of the multimembrane leaf roll counter-infiltration filter core of the embodiment of the present invention, there is multiple pure water flow-guiding screen, counter-infiltration diaphragm and condensed water flow-guiding screen, and multiple pure water flow-guiding screen is all connected on central tube.Thus, by adopting multimembrane leaf roll system, decreasing pure water in flow distance in counter-infiltration diaphragm, reducing the resistance that pure water flows in counter-infiltration diaphragm, thus improve the flux of counter-infiltration filter core, water efficiency processed and service life; Because multiple pure water flow-guiding screen is all connected on central tube, when the hydraulic pressure effect that this multimembrane leaf roll counter-infiltration filter core is changed, pure water flow-guiding screen can not be shifted, loosen etc. phenomenon, and the counter-infiltration diaphragm be arranged between multiple pure water flow-guiding screen and condensed water flow-guiding screen are also not easily shifted, thus the displacement of each element in multimembrane leaf roll counter-infiltration filter core can be avoided or loosen, the internal structure of multimembrane leaf roll counter-infiltration filter core is avoided to damage, ensure the water filtering performance of this multimembrane leaf roll counter-infiltration filter core, and add service life.This preparation method can improve the production efficiency of multimembrane leaf roll counter-infiltration filter core widely.
According to one embodiment of present invention, described central tube is provided with multiple through hole, is being separately fixed in the process on central tube by multiple described pure water flow-guiding screen, makes all to have through hole described at least one between every two adjacent described pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved.
According to one embodiment of present invention, described central tube is provided with many exhausting holes, and all has an exhausting hole between every two adjacent described pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved further.
According to one embodiment of present invention, at the edge coated glue of a lateral surface of described counter-infiltration diaphragm, and by bonding with this counter-infiltration diaphragm for the pure water flow-guiding screen corresponding with the side described counter-infiltration diaphragm being coated with glue.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the multimembrane leaf roll counter-infiltration filter core of one embodiment of the present of invention.
Fig. 2 is the exploded perspective view of the multimembrane leaf roll counter-infiltration filter core of one embodiment of the present of invention.
Fig. 3 is the exploded perspective view of the multimembrane leaf roll counter-infiltration filter core of another embodiment of the present invention.
Fig. 4 is the schematic diagram that the counter-infiltration diaphragm of the multimembrane leaf roll counter-infiltration filter core of another embodiment of the present invention coordinates with condensed water flow-guiding screen.
Fig. 5 is the schematic flow sheet of the preparation method of the multimembrane leaf roll counter-infiltration filter core of one embodiment of the present of invention.
Reference numeral: multimembrane leaf roll counter-infiltration filter core 100; Central tube 1; Pure water flow-guiding screen 2; Counter-infiltration diaphragm 3; Condensed water flow-guiding screen 4; Through hole 101; Glue 5; First pure water flow-guiding screen 2a; Second pure water flow-guiding screen 2b; First counter-infiltration diaphragm 3a; Second counter-infiltration diaphragm 3b; First condensed water flow-guiding screen 4a; Second condensed water flow-guiding screen 4b; 3rd pure water flow-guiding screen 2c; 3rd counter-infiltration diaphragm 3c; 3rd condensed water flow-guiding screen 4c.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Existing counter-infiltration filter core usually adopts monofilm leaf to roll around central tube and forms, and inlet and outlet channel is long.Obtained pure water flow distance in counter-infiltration diaphragm is longer, and the resistance causing pure water to flow in counter-infiltration diaphragm is comparatively large, makes the water efficiency processed of counter-infiltration filter core lower.In order to solve the problem, the present invention proposes a kind of counter-infiltration filter core with multilayer film leaf roll, and multiple pure water flow-guiding screens of this multimembrane leaf counter-infiltration filter core are all fixedly connected with central tube, thus make not easily to occur phenomenons such as being shifted or loosening between each film leaf of this multimembrane leaf roll counter-infiltration filter core, avoid the phenomenon that filter core inside rolls malformation damage, improve service life.
Describe the multimembrane leaf roll counter-infiltration filter core of first aspect present invention embodiment with reference to the accompanying drawings in detail.
As shown in Figures 1 to 4, according to the multimembrane leaf roll counter-infiltration filter core 100 of the embodiment of the present invention, comprising: central tube 1, pure water flow-guiding screen 2, counter-infiltration diaphragm 3 and condensed water flow-guiding screen 4.
Specifically, the sidewall of central tube 1 is provided with the through hole 101 being suitable for pure water turnover.Pure water flow-guiding screen 2 is multiple, and each pure water flow-guiding screen 2 is all connected with central tube 1, and multiple pure water flow-guiding screen 2 is wound on central tube 1 from inside to outside, and in other words, multiple pure water flow-guiding screen 2 is wound into multilayer from inside to outside on central tube 1.
Counter-infiltration diaphragm 3 is multiple, is equipped with at least one counter-infiltration diaphragm 3 between two often adjacent pure water flow-guiding screens 2.Particularly, for this multimembrane leaf roll counter-infiltration filter core 100, there are two pure water flow-guiding screens 2, because two pure water flow-guiding screens 2 all reel on central tube 1, therefore, two pure water flow-guiding screens 2 can between be separated out two put areas, and in each put area, be equipped with at least one counter-infiltration diaphragm 3.Further, for this multimembrane leaf roll counter-infiltration filter core 100 have N number of pure water flow-guiding screen 2 (wherein N be greater than 1 natural number), because N number of pure water flow-guiding screen 2 all reels on central tube 1, therefore, N number of pure water flow-guiding screen 2 can between be separated out N number of put area, and in each put area, be equipped with at least one counter-infiltration diaphragm 3.
Each counter-infiltration diaphragm 3 is multilayer, and condensed water flow-guiding screen 4 is corresponding with multiple counter-infiltration diaphragm 3 multiple, and each condensed water flow-guiding screen 4 is between to be all located in corresponding multilayer counter-infiltration diaphragm 3 two-layer.
According to the multimembrane leaf roll counter-infiltration filter core of the embodiment of the present invention, there is multiple pure water flow-guiding screen 2, counter-infiltration diaphragm 3 and condensed water flow-guiding screen 4, and multiple pure water flow-guiding screen 2 is all connected on central tube 1.Thus, by adopting multimembrane leaf roll system, decreasing pure water in flow distance in counter-infiltration diaphragm 3, reducing the resistance that pure water flows in counter-infiltration diaphragm 3, thus improve the flux of counter-infiltration filter core, water efficiency processed and service life, because multiple pure water flow-guiding screen 2 is all connected on central tube 1, when the hydraulic pressure effect that this multimembrane leaf roll counter-infiltration filter core 100 is changed, pure water flow-guiding screen 2 can not be shifted, loosen etc. phenomenon, and the counter-infiltration diaphragm 3 be arranged between multiple pure water flow-guiding screen 2 and condensed water flow-guiding screen 4 are also not easily shifted, thus the displacement of each element in multimembrane leaf roll counter-infiltration filter core 100 can be avoided or loosen, the internal structure of multimembrane leaf roll counter-infiltration filter core 100 is avoided to damage, ensure this multimembrane leaf roll counter-infiltration filter core 100 water filtering performance, and add service life.
As shown in Figures 2 to 4, in one embodiment of the invention, counter-infiltration diaphragm 3 is two-layer for what be folded to form, and the contiguous central tube 1 in the fold position of counter-infiltration diaphragm 3.Thus, make counter-infiltration diaphragm 3 can form multilayer for clamping condensed water flow-guiding screen 4 easily, make counter-infiltration diaphragm 3 easy to make, improve the production efficiency of multimembrane leaf roll counter-infiltration filter core 100, and improve the water filtering performance of this multimembrane leaf roll counter-infiltration filter core 100.
As shown in Figures 2 and 3, in examples more of the present invention, each counter-infiltration diaphragm 3 is bonding with at least one in corresponding two pure water flow-guiding screens 2.In other words, each counter-infiltration diaphragm 3 is all located between two pure water flow-guiding screens 2, and counter-infiltration diaphragm 3 is bonding with at least one in two pure water flow-guiding screens 2 of this counter-infiltration diaphragm 3 of clamping.Thus, this multimembrane leaf roll counter-infiltration filter core 100 is made to roll conveniently, Stability Analysis of Structures.
Advantageously, counter-infiltration diaphragm 3 is bonding with corresponding pure water flow-guiding screen 2 by glue 5, and glue 5 is located at the week edge of an outer surface of counter-infiltration diaphragm 3.Thus, not only make multimembrane leaf roll counter-infiltration filter core 100 roll conveniently and Stability Analysis of Structures, but also glue can be avoided to affect the water filtering performance of multimembrane leaf roll counter-infiltration filter core 100.
Further, as shown in Figures 2 and 3, counter-infiltration diaphragm 3 upper surface is provided with glue 5, glue 5 is located at the week edge of counter-infiltration diaphragm 3 upper surface, and in the side of the contiguous central tube 1 of counter-infiltration diaphragm 3 upper surface, glue is not set, the Drainage efficiency of this multimembrane leaf roll counter-infiltration filter core 100 is affected with surface.
In some embodiments of the invention, through hole 101 is arrange on the sidewall of central tube 1 multiple, is equipped with at least one through hole 101 between two often adjacent pure water flow-guiding screens 2.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core 100 can be improved.
Further, through hole 101 is the many rows corresponding with multiple counter-infiltration diaphragm 3, and is equipped with an exhausting hole 101 between two often adjacent pure water flow-guiding screens 2.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core 100 can be improved further.
Advantageously, every exhausting hole 101 all centrally pipe 1 axis direction interval arrange.Thus, make through hole 101 connection and reasonable arrangement, be convenient to the shaping of central tube 1, improve the production efficiency of multimembrane leaf roll counter-infiltration filter core 100.
As shown in Figure 2, in one particular embodiment of the present invention, pure water flow-guiding screen 2, counter-infiltration diaphragm 3 and condensed water flow-guiding screen 4 are respectively two.
Specifically, this multimembrane leaf roll counter-infiltration filter core 100 comprises: central tube 1, first pure water flow-guiding screen 2a, the second pure water flow-guiding screen 2b, the first counter-infiltration diaphragm 3a, the second counter-infiltration diaphragm 3b, the first condensed water flow-guiding screen 4a and the second condensed water flow-guiding screen 4b.First pure water flow-guiding screen 2a is connected with central tube 1, and the first pure water flow-guiding screen 2a is wound on central tube 1.Second pure water flow-guiding screen 2b is connected with central tube 1, and the second pure water flow-guiding screen 2b is wound on central tube 1, and the first pure water flow-guiding screen 2a is wound on the outside (side that namely the second pure water flow-guiding screen 2b is downward as shown in Figure 2) of the second pure water flow-guiding screen 2b.In other words, as shown in Figure 2, the right side of the first pure water flow-guiding screen 2a and the second pure water flow-guiding screen 2b upwards reels around central tube 1.
First counter-infiltration diaphragm 3a is located at the outside (side that namely the second pure water flow-guiding screen 2b is downward as shown in Figure 2) of the second pure water flow-guiding screen 2b, and the first counter-infiltration diaphragm 3a is positioned at the inner side (namely as shown in Figure 2 the first pure water flow-guiding screen 2a side upwards) of the first pure water flow-guiding screen 2a.Second counter-infiltration diaphragm 3b is located at the inner side (namely as shown in Figure 2 the second pure water flow-guiding screen 2b side upwards) of the second pure water flow-guiding screen 2b, and the first counter-infiltration diaphragm 3a and the second counter-infiltration diaphragm 3b is multilayer.
First condensed water flow-guiding screen 4a is located between to have in the first counter-infiltration diaphragm 3a of multilayer two-layer, and the second condensed water flow-guiding screen 4b is located between to have in the second counter-infiltration diaphragm 3b of multilayer two-layer.
First counter-infiltration diaphragm 3a is folded to form for placing the two-layer of the first condensed water flow-guiding screen 4a, and the contiguous central tube 1 in the fold position of the first counter-infiltration diaphragm 3a, second counter-infiltration diaphragm 3b is folded to form for placing the two-layer of described second condensed water flow-guiding screen 4b, and the contiguous central tube 1 in the fold position of the second counter-infiltration diaphragm 3b.
First counter-infiltration diaphragm 3a is bonding with the second pure water flow-guiding screen 2b, and the second counter-infiltration diaphragm 3b is bonding with the first pure water flow-guiding screen 2a.
Through hole 101 on central tube 1 is two rows, and two exhausting holes 101 are corresponding with the first counter-infiltration diaphragm 3a and the second counter-infiltration diaphragm 3b respectively.
As shown in Figure 3, in another specific embodiment of the present invention, pure water flow-guiding screen 2, counter-infiltration diaphragm 3 and condensed water flow-guiding screen 4 three.
Specifically, this multimembrane leaf roll counter-infiltration filter core 100 comprises: central tube 1, first pure water flow-guiding screen 2a, the second pure water flow-guiding screen 2b, the 3rd pure water flow-guiding screen 2c, the first counter-infiltration diaphragm 3a, the second counter-infiltration diaphragm 3b, the 3rd counter-infiltration diaphragm 3c, the first condensed water flow-guiding screen 4a, the second condensed water flow-guiding screen 4b and the 3rd condensed water flow-guiding screen 4c.
First pure water flow-guiding screen 2a is connected with central tube 1, and the first pure water flow-guiding screen 2a is wound on central tube 1.Second pure water flow-guiding screen 2b is connected with central tube 1, and the second pure water flow-guiding screen 2b is wound on central tube 1,3rd pure water flow-guiding screen 2c is connected with central tube 1, and the 3rd pure water flow-guiding screen 2c is wound on central tube 1, first pure water flow-guiding screen 2a is wound on the outside (side that namely the second pure water flow-guiding screen 2b is downward as shown in Figure 3) of the second pure water flow-guiding screen 2b, and the second pure water flow-guiding screen 2b is wound on the outside (side that namely the 3rd pure water flow-guiding screen 2c is downward as shown in Figure 3) of the 3rd pure water flow-guiding screen 2c.In other words, as shown in Figure 3, the right side of the first pure water flow-guiding screen 2a, the second pure water flow-guiding screen 2b and the 3rd pure water flow-guiding screen 2c upwards reels around central tube 1.
First counter-infiltration diaphragm 3a is located at the outside (side that namely the second pure water flow-guiding screen 2b is downward as shown in Figure 3) of the second pure water flow-guiding screen 2b, and the first counter-infiltration diaphragm 3a is positioned at the inner side (namely as shown in Figure 3 the first pure water flow-guiding screen 2a side upwards) of the first pure water flow-guiding screen 2a.Second counter-infiltration diaphragm 3b is located at the inner side (namely as shown in Figure 3 the second pure water flow-guiding screen 2b side upwards) of the second pure water flow-guiding screen 2b, and the second counter-infiltration diaphragm 3b is positioned at outer (side that namely the 3rd pure water flow-guiding screen 2c is downward as shown in Figure 3) of the 3rd pure water flow-guiding screen 2c, the first counter-infiltration diaphragm 3a, the second counter-infiltration diaphragm 3b and the 3rd counter-infiltration diaphragm 3c are multilayer.
First condensed water flow-guiding screen 4a is located between to have in the first counter-infiltration diaphragm 3a of multilayer two-layer, second condensed water flow-guiding screen 4b is located between to have in the second counter-infiltration diaphragm 3b of multilayer two-layer, and the 3rd condensed water flow-guiding screen 4c is located between to have in the 3rd counter-infiltration diaphragm 3c of multilayer two-layer.
First counter-infiltration diaphragm 3a is folded to form for placing the two-layer of the first condensed water flow-guiding screen 4a, and the contiguous central tube 1 in the fold position of the first counter-infiltration diaphragm 3a, second counter-infiltration diaphragm 3b is folded to form for placing the two-layer of described second condensed water flow-guiding screen 4b, and the contiguous central tube 1 in the fold position of the second counter-infiltration diaphragm 3b, 3rd counter-infiltration diaphragm 3c is folded to form for placing the two-layer of the 3rd condensed water flow-guiding screen 4c, and the contiguous central tube 1 in the fold position of the 3rd counter-infiltration diaphragm 3c.
First counter-infiltration diaphragm 3a is bonding with the second pure water flow-guiding screen 2b, and the second counter-infiltration diaphragm 3b is bonding with the 3rd pure water flow-guiding screen 2c, and the 3rd counter-infiltration diaphragm 3c is bonding with the first pure water flow-guiding screen 2a.
Through hole 101 on central tube 1 is two rows, and two exhausting holes 101 are corresponding with the first counter-infiltration diaphragm 3a, the second counter-infiltration diaphragm 3b and the 3rd counter-infiltration diaphragm 3c respectively.
Describe the preparation method of the multimembrane leaf roll counter-infiltration filter core of second aspect present invention embodiment with reference to the accompanying drawings in detail.
As shown in Figure 5, according to the preparation method of the multimembrane leaf roll counter-infiltration filter core of the embodiment of the present invention, comprising: multiple pure water flow-guiding screen is separately fixed on described central tube, making a side of each pure water flow-guiding screen along being connected with described central tube.By the doubling respectively of multiple counter-infiltration diaphragm, described counter-infiltration diaphragm is set between every two adjacent described pure water flow-guiding screens, and makes the contiguous described central tube in the fold position of described counter-infiltration diaphragm.The doubling of each described counter-infiltration diaphragm two-layer between place condensed water flow-guiding screen; After described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen have been placed, described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen are wound on described central tube.
According to the preparation method of the multimembrane leaf roll counter-infiltration filter core of the embodiment of the present invention, there is multiple pure water flow-guiding screen, counter-infiltration diaphragm and condensed water flow-guiding screen, and multiple pure water flow-guiding screen is all connected on central tube.Thus, by adopting multimembrane leaf roll system, decreasing pure water in flow distance in counter-infiltration diaphragm, reducing the resistance that pure water flows in counter-infiltration diaphragm, thus improve the flux of counter-infiltration filter core, water efficiency processed and service life; Because multiple pure water flow-guiding screen is all connected on central tube, when the hydraulic pressure effect that this multimembrane leaf roll counter-infiltration filter core is changed, pure water flow-guiding screen can not be shifted, loosen etc. phenomenon, and the counter-infiltration diaphragm be arranged between multiple pure water flow-guiding screen and condensed water flow-guiding screen are also not easily shifted, thus the displacement of each element in multimembrane leaf roll counter-infiltration filter core can be avoided or loosen, the internal structure of multimembrane leaf roll counter-infiltration filter core is avoided to damage, ensure the water filtering performance of this multimembrane leaf roll counter-infiltration filter core, and add service life.This preparation method can improve the production efficiency of multimembrane leaf roll counter-infiltration filter core widely.
In some embodiments of the invention, described central tube is provided with multiple through hole, is being separately fixed in the process on central tube by multiple described pure water flow-guiding screen, makes all to have through hole described at least one between every two adjacent described pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved.
Described central tube is provided with many exhausting holes, and all has an exhausting hole between every two adjacent described pure water flow-guiding screens.Thus, the Drainage efficiency of multimembrane leaf roll counter-infiltration filter core can be improved further.
According to one embodiment of present invention, at the edge coated glue of a lateral surface of described counter-infiltration diaphragm, and by bonding with this counter-infiltration diaphragm for the pure water flow-guiding screen corresponding with the side described counter-infiltration diaphragm being coated with glue.
Particularly, counter-infiltration diaphragm upper surface is provided with glue, and glue is located at the week edge of counter-infiltration diaphragm upper surface, and does not arrange glue in the side of the contiguous central tube of counter-infiltration diaphragm upper surface, affects the Drainage efficiency of this multimembrane leaf roll counter-infiltration filter core with surface.
Specifically describe the preparation method of the multimembrane leaf roll counter-infiltration filter core of one embodiment of the present of invention below.As shown in Figure 2, this multimembrane leaf roll counter-infiltration filter core has two pure water flow-guiding screens, counter-infiltration diaphragm and condensed water flow-guiding screen.
S1: the first pure water flow-guiding screen is fixed on central tube;
S2: the first counter-infiltration diaphragm is carried out doubling, middle placement one deck first condensed water flow-guiding screen;
S3: the doubling position of the first counter-infiltration diaphragm is positioned near central tube;
S4: apply glue at three sides on the upper strata to fold of the first counter-infiltration diaphragm;
S5: the second pure water flow-guiding screen is placed on the first counter-infiltration permeable membrane sheet to the upper surface of fold is fixed by glue, the second pure water flow-guiding screen and central tube is fixed simultaneously;
S6: the second counter-infiltration diaphragm after doubling is placed on the second pure water flow-guiding screen top, places the second dense water flow-guiding screen in the middle of after the second counter-infiltration diaphragm doubling, applies glue at three sides on the upper strata to fold of the second counter-infiltration diaphragm;
S7: centrally pipe rolls to the direction of counter-infiltration diaphragm.
As shown in Figure 3, this multimembrane leaf roll counter-infiltration filter core can also have three pure water flow-guiding screens, counter-infiltration diaphragm and condensed water flow-guiding screen.Therefore, the preparation method of this multimembrane leaf roll counter-infiltration filter core, except above-mentioned steps, between S6 and S7, also has following steps:
S8: the 3rd pure water flow-guiding screen is placed on the second counter-infiltration permeable membrane sheet to the upper surface of fold is fixed by glue, the 3rd pure water flow-guiding screen and central tube is fixed simultaneously;
S9: the 3rd counter-infiltration diaphragm after doubling is placed on the 3rd pure water flow-guiding screen top, places the 3rd dense water flow-guiding screen in the middle of after the 3rd counter-infiltration diaphragm doubling, applies glue at three sides on the upper strata to fold of the second counter-infiltration diaphragm.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this description or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (12)
1. a multimembrane leaf roll counter-infiltration filter core, is characterized in that, comprising:
Central tube, the sidewall of described central tube is provided with the through hole being suitable for pure water turnover;
Pure water flow-guiding screen, described pure water flow-guiding screen is multiple, and each described pure water flow-guiding screen is all connected with described central tube, and multiple described pure water flow-guiding screen is wound on described central tube from inside to outside;
Counter-infiltration diaphragm, described counter-infiltration diaphragm is multiple, is equipped with counter-infiltration diaphragm described at least one between often adjacent two described pure water flow-guiding screens, and each described infiltration diaphragm of sending out is multilayer;
Condensed water flow-guiding screen, described condensed water flow-guiding screen is corresponding with multiple described counter-infiltration diaphragm multiple, and each described condensed water flow-guiding screen is between to be all located in counter-infiltration diaphragm described in corresponding multilayer two-layer.
2. multimembrane leaf roll counter-infiltration filter core according to claim 1, is characterized in that, described counter-infiltration diaphragm is be folded to form two-layer, and the contiguous described central tube in the fold position of described counter-infiltration diaphragm.
3. multimembrane leaf roll counter-infiltration filter core according to claim 1, is characterized in that, each described counter-infiltration diaphragm is bonding with at least one in corresponding two described pure water flow-guiding screens.
4. multimembrane leaf roll counter-infiltration filter core according to claim 3, is characterized in that, described counter-infiltration diaphragm is bonding with corresponding described pure water flow-guiding screen by glue, and described glue is located at the week edge of an outer surface of described counter-infiltration diaphragm.
5. multimembrane leaf roll counter-infiltration filter core according to claim 1, is characterized in that, described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen are respectively two or three.
6. multimembrane leaf roll counter-infiltration filter core according to claim 1, is characterized in that, described through hole is arrange on the sidewall of described central tube multiple, is equipped with at least one through hole between two often adjacent pure water flow-guiding screens.
7. multimembrane leaf roll counter-infiltration filter core according to claim 1, is characterized in that, described through hole is the many rows corresponding with multiple described counter-infiltration diaphragm, and is equipped with an exhausting hole between two often adjacent pure water flow-guiding screens.
8. multimembrane leaf roll counter-infiltration filter core according to claim 7, is characterized in that, often arranges described through hole and all arranges along the axis direction interval of described central shaft.
9. a preparation method for multimembrane leaf roll counter-infiltration filter core, is characterized in that, comprising:
Multiple pure water flow-guiding screen is separately fixed on described central tube;
By the doubling respectively of multiple counter-infiltration diaphragm, described counter-infiltration diaphragm is set between every two adjacent described pure water flow-guiding screens, and makes the contiguous described central tube in the fold position of described counter-infiltration diaphragm;
The doubling of each described counter-infiltration diaphragm two-layer between place condensed water flow-guiding screen;
After described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen have been placed, described pure water flow-guiding screen, described counter-infiltration diaphragm and described condensed water flow-guiding screen are wound on described central tube.
10. the preparation method of multimembrane leaf roll counter-infiltration filter core according to claim 9, it is characterized in that, described central tube is provided with multiple through hole, multiple described pure water flow-guiding screen is being separately fixed in the process on central tube, is making, between every two adjacent described pure water flow-guiding screens, all there is through hole described at least one.
The preparation method of 11. multimembrane leaf roll counter-infiltration filter cores according to claim 9, it is characterized in that, described central tube is provided with many exhausting holes, and all has an exhausting hole between every two adjacent described pure water flow-guiding screens.
The preparation method of 12. multimembrane leaf roll counter-infiltration filter cores according to claim 9, it is characterized in that, at the edge coated glue of a lateral surface of described counter-infiltration diaphragm, and by bonding with this counter-infiltration diaphragm for the pure water flow-guiding screen corresponding with the side described counter-infiltration diaphragm being coated with glue.
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